SOURCES SOUGHT
66 -- Radar Absorbent material (RAM), 3,4,& 5 foot tall for low frequency test capability
- Notice Date
- 4/5/2007
- Notice Type
- Sources Sought
- NAICS
- 334515
— Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
- Contracting Office
- Department of the Air Force, Air Force Materiel Command, AFFTC - AF Flight Test Center, 5 S WOLFE AVE, Edwards AFB, CA, 93524-1185, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- FA9302-07-P-E039
- Response Due
- 4/16/2007
- Archive Date
- 5/1/2007
- Description
- The 412 TW/AFFTC, Edwards Air Force Base, CA is seeking potential sources capable of providing 3 foot, 4 foot, and 5 foot high radar absorbing material (RAM) low frequency test capability in the Benefield Anechoic Facility (BAF). NOTES: (1) Unless noted otherwise, all RAM dimensions below refer to nominal height, i.e.: 600 mm is close enough to 24 inches. (2) Unless noted otherwise, standard base dimensions required are 24 inch x 24 inch (600 mm x 600 mm may be acceptable). (3) If your company does not currently produce the particular item requested, do not respond with capabilities unless your company can deliver within 6 Months After Receipt of Order. (4). Capability response for any product containing uncharacterized RAM coating treatment WILL NOT be considered by the Government during the evaluation process. This purchase will be for 140, Each, 60 inch pyramidal RAMs; 140, Each, 48 inch pyramidal RAM; and 140, Each, 36 inch pyramidal RAM, each with a base of 24 inches by 24 inches in accordance with the following Statement of Work and specifications: STATEMENT OF WORK FOR 3 FOOT, 4 FOOT AND 5 FOOT MICROWAVE PYRAMIDAL FLAME-RETARDANT RADAR ABSORBING MATERIAL. 1.0 SCOPE: The 772nd Test Squadron of Edwards AFB, CA has a requirement to provide low frequency test capability in the Benefield Anechoic Facility (BAF). This low frequency capability requires the installation of large foam absorbers in order to eliminate multi-path reflections back to the System Under Test (SUT). The purchase of 140 pieces of 60 inch pyramidal RAM, 140 pieces of 48 inch pyramidal RAM and 140 pieces of 36 inch pyramidal RAM, each with a base of 24 inches by 24 inches, is needed to provide the necessary attenuation at these frequencies. 2.0 APPLICABLE DOCUMENTS: 1) IEEE Standard 1128 ? ?Recommended Practice for RF Absorber Performance Evaluation in the Range 30 MHz to 5Ghz.? 2) NRL Report 8093 ? ?Modified Smoldering Test of Urethane Foams Used in Anechoic Chambers.? 3.0 REQUIREMENTS: 3.1 Testing for Frequency Performance. 3.1.1 Low Frequency Testing: Each piece of RAM shall be uniquely numbered and tested. Low frequency testing will be performed using a coaxial reflectometer according to IEEE Standard 1128. The IEEE low frequency method requires RAM to be tested with eight 2 foot by 2 foot pieces at a time, which is acceptable to verify the low frequency performance. The RAM must be tested from 80 Mhz to 500 Mhz and meet or exceed the stated attenuation values. The required break points are listed in the table below: Reflectivity Attenuation in dB @ Normal Incidence for Various RAM Heights Frequency (MHZ) 36 inch 48 inch 60 inch 80 N/A 15 15 120 N/A 20 20 200 N/A 30 30 300 30 35 35 500 40 40 40 Electronic and/or paper copies of the measured reflectivity data shall be delivered for each group of 8 pieces tested, indicating which serially numbered pieces were tested and whether or not they passed the reflection requirements defined in the table above. 3.1.2 High Frequency Testing: High frequency reflectivity measurements are required for at least 10% of each sub-lot. The frequency range required for this measurement is from 6 to 18 GHz at near normal incidence angle. Test samples will be taken from sub-lots throughout all manufacturing runs. Electronic and/or paper copies of the measured reflectivity data will be delivered for each set of RAM tested, indicating which serially numbered pieces were tested. 3.1.3 Data Delivery Requirements. All data collected for low frequency and high frequency testing must be provided on or before date of RAM delivery. The US Government will not accept any shipments of RAM which are not provided with the required associated data upon date of RAM delivery. Each measurement plot must identify by serial number which pieces were tested for that plot. Additionally, a table must be provided to show which serial numbers belong to which sub-lot. 3.2 Manufacturing Constraints. 3.2.1 Glue lines. Due to the multi-use test nature of the BAF, glue lines are undesirable for high frequency BAF tests. If any manufactured RAM will include any seams whatsoever, the seam location(s) must be provided and the RAM pieces with those seams must be identified by serial number. 3.2.2 Pyramid Design. The RAM to be purchased for this SOW may be of either standard pyramid or twisted pyramid design. In no case, however, should the manufacturer mix-and-match pyramid styles in the performance of this SOW. All 36-inch, 48-inch and 60-inch RAM purchased under this SOW shall be of either standard pyramid or twisted pyramid design, but not both. 3.2.3 Footprint Size Tolerance. Each piece must measure 24 inches square. The BAF is marked with a 4 foot by 4 foot grid that has been permanently scored onto the entire concrete floor. As such, RAM must fit onto that grid. The RAM cannot be consistently oversized, but should instead be manufactured to a 24 inch by 24 inch base with a maximum size tolerance of +0.0 inch/-0.25 inch. 3.2.4 Cleanroom Requirement. The RAM must not shed or leach carbon and/or fire retardants -- whether that is achieved by an inherent closed-cell design or a complete Latex-type coating over all surfaces -- including the bottom. All RAM to be purchased as part of this SOW must not shed carbon particles during normal handling -- including dropping an upright piece of RAM from a height of 3 feet onto a concrete surface (with the bottom RAM surface impacting the concrete). If used, the Latex-type coating on the bottom surface may be thicker than on other surfaces. 3.3 Delivery Constraints. RAM delivery must be coordinated with the 772nd Test Squadron Director of Operations (772 TS/DO). The last delivery of the entire order should not exceed 4 weeks from the first delivery. 3.4 Fire Retardancy Independently test the flammability of the RAM?s manufacturing method to meet the fire retardancy required by NRL Report 8093 (Tests 1, 2, and 3). 3.5 Physical Characteristics for RAM. The physical description of the 36 inch, 48 inch and 60 inch pyramidal RAM is provided in the table below: Overall Height 36, 48 and 60 inches +/-0.5 inch Overall RAM Footprint 24 inches square +0.0/-0.25inch Pyramids per piece 4 for 36 inch, 4 for 48 inch, 1 for 60 inch Pyramid Shape Conventional or twisted pyramid Fire Retardancy IAW NRL Report 8093 (Tests 1, 2 and 3) Sealing (closed cell design or paint on all exposed surfaces must prevent the release of carbon particles) If paint is used, it must not degrade RAM performance below that required by paragraph 3.1 Color If used, paint must be Light Blue (required on all surfaces including the bottom) ? otherwise, exposed RAM surfaces may be Black if closed cell design. 3.6 Past Performance Requirements. Provide evidence of previous contract success in meeting identical or similar requirements: a. RAM manufactured to similar specifications (SOW Para 3.5). b. Meeting flammability testing requirements IAW NRL Report 8093 (Tests 1, 2 and 3). c. Ability to deliver a similar quantity of RAM within the time frame specified (SOW Para 3.3). 3.7 Program Management. The contractor shall notify the AFFTC Contracting Officer?s Technical Representative (COTR) in a timely manner concerning any issues that would adversely impact the contractor?s ability to meet and satisfy the performance or schedule requirements of this SOW. Ship Date: 6 Months After Receipt of Order. FOB: Destination Edwards AFB CA 93524. Please note that this synopsis is for planning purposes only and does not constitute a solicitation for competitive bids/proposals and is not to be construed as a commitment by the Government. However, all interested parties who believe they can meet the requirements are invited to submit in writing complete information describing their ability to provide the products or equivalent, listed above. Firms responding to this notice must identify their company?s capabilities to perform the requirements described herein, reference the number and indicate whether or not that they are a small business concern as defined in FAR 52.219-1. The NAICS code is 334515. The Small Business size standard is 500 employees. The information received as a result of this synopsis will be considered solely for the purpose of determining whether to conduct a competitive procurement. A determination by the Air Force not to open the requirement to open competition, based on response to this sources sought synopsis, is solely within the discretion of the Air Force. The Government does not intend to pay for any information provided under this sources sought synopsis. It is anticipated that a Firm Fixed Price contract will be awarded in May 2007. All responses may be sent via e-mail mary.uptergrove@edwards.af.mil or mailed to 412TW/PKDD, 5 South Wolfe Ave, Edwards AFB, CA 93524-1185, Attention: Mary E. Uptergrove. Responses to this sources sought synopsis are due in the office by 2 PM PST, 16 Apr 2007.
- Place of Performance
- Address: Edwards AFB CA
- Zip Code: 93524
- Country: UNITED STATES
- Zip Code: 93524
- Record
- SN01267123-W 20070407/070405220723 (fbodaily.com)
- Source
-
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